Her is how to do it hope it helps you!
The unit vector that is in the same direction as v is given by:
<h3>How to find a vector given two points?</h3>
The vector is given by the <u>terminal point subtracted by the initial point,</u> hence:
v = (-17, 4) - (7, -9) = <-24, 13>
<h3>How to find the unit version of a vector?</h3>
Each coordinate of the vector is <u>divided by it's norm</u>.
For this vector, the norm is given by:

Hence the unit vector is:
More can be learned about vectors at brainly.com/question/24606590
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<span>Jerry is 8 years younger than Patricia, so:
(1): Jerry = Patricia - 8
Six years ago, Patricia was 3 times as old as Jerry was then, so:
(2): (Patricia - 6) = (Jerry - 6)*3
Putting equation 1 in to equation 2
(Patricia - 6) = (Patricia - 8 - 6)*3
Patricia - 6 = 3Patricia - 42
36 = 2Patricia
Patricia = 18
And so Jerry = 10</span>